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Thread: E36 Euro M3 S50B32 DME errors. Advice needed.

  1. #1
    Join Date
    May 2009
    Location
    Lithuania
    Posts
    178
    My Cars
    E38 750i FL & E36 M3 4DR

    E36 Euro M3 S50B32 DME errors. Advice needed.

    Hi,

    So I was (un)lucky to read my DME using DIS and got the following fault codes:

    13 Oxygen sensor 1
    22 Advance valve, VANOS exhaust
    36 Tank venting valve
    41 Mass air flow sensor
    53 Electricfan relay
    77 temperature sensor for intake air
    80 Switch for gear recognition

    The same codes re-appear after they've been cleared, so it means that there are some current issues with the engine and needs repairing.
    Has anyone of you seen these and what has been done? Maybe some of them are related and once one bit done, other faults will disappear as well?
    The engine runs rough on idle, but when warmed up. Sometimes engine just shuts after long drive and going from 5th or 6th gear to idle while rolling. Needs restarting the engine while moving in neutral.
    What I have done so far: replaced spark plugs, but old ones looked pretty good. Replaced front O2 sensors with used ones, but that haven't made any difference.

    Any help much appreciated.

  2. #2
    Join Date
    Nov 2002
    Location
    Washington, DC
    Posts
    6,481
    My Cars
    E30 E36 E46 E90
    36 and 77 could be related. IIRC, those are the same plugs, so it's very easy to hook them up backwards. Given how many codes you have from wires going through that area, I'd want to pull the manifold and inspect.

    If the VANOS code instantly reappears, check the plugs up front. DO NOT reinstall the cosmetic cover while trying to diagnose this. My experience with it is that it can torque the holder and cause connectors to come loose.
    2011 M3 Sedan
    2006 GMC Sierra 2500HD LBZ
    1999 323i GTS2
    1995 M3 - S50B32/S6S420G/3.91
    1990 325is
    1989 M3 - S54B32/GS6-37BZ

    Hers: 1996 Porsche 911 Turbo
    Hers: 1989 325iX


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